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dc.contributor.author Krabbe, A.
dc.contributor.author Rosa, D. A.
dc.contributor.author Dors Jr., Oli L.
dc.contributor.author Pastoriza, Miriani G.
dc.contributor.author Winge, C.
dc.contributor.author Hägele, Guillermo Federico
dc.contributor.author Cardaci, Monica Viviana
dc.contributor.author Rodrigues, Irapuan
dc.date.available 2017-04-12T14:49:53Z
dc.date.issued 2014-01
dc.identifier.citation Krabbe, A.; Rosa, D. A.; Dors Jr., Oli L.; Pastoriza, Miriani G.; Winge, C.; et al.; Interaction effects on galaxy pairs with Gemini/GMOS- I: electron density; Wiley; Monthly Notices Of The Royal Astronomical Society; 437; 2; 1-2014; 1155-1170
dc.identifier.issn 0035-8711
dc.identifier.uri http://hdl.handle.net/11336/15206
dc.description.abstract We present an observational study about the impacts of the interactions on the electron density of HII regions located in seven systems of interacting galaxies. The data consist of long-slit spectra in the range 4400-7300 A, obtained with the Gemini Multi-Object Spectrograph at Gemini South (GMOS-S). The electron density was determined using the ratio of emission-lines [S II] lambda 6716/ lambda 6731. Our results indicate that the electron density estimates obtained of HII regions from our sample of interacting galaxies are systematically higher than those derived for isolated galaxies. The mean electron density values of interacting galaxies are in the range of Ne = 24 - 532 cm^{-3}, while those obtained for isolated galaxies are in the range of Ne = 40 - 137 cm^{-3}. Comparing the observed emission lines with predictions of photoionization models, we verified that almost all the HII regions of the galaxies AM1054A, AM2058B, AM2306B have emission lines excited by shocks, such as in AM2322B (one point) and AM 2322A (four points). No correlation is obtained between the presence of shocks and electron densities. Indeed, the highest electron density values found in our sample do not belong to the objects with gas shock excitation. We emphasize the importance of considering theses quantities especially when the metallicity is derived for this type of systems.
dc.format application/pdf
dc.language.iso eng
dc.publisher Wiley
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject Interstellar medium
dc.subject Galaxies
dc.subject Interaction of galaxies
dc.subject.classification Astronomía
dc.subject.classification Ciencias Físicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Interaction effects on galaxy pairs with Gemini/GMOS- I: electron density
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-03-27T15:55:39Z
dc.journal.volume 437
dc.journal.number 2
dc.journal.pagination 1155-1170
dc.journal.pais Reino Unido
dc.journal.ciudad Londres
dc.description.fil Fil: Krabbe, A.. Universidade Do Vale Do Paraiba; Brasil
dc.description.fil Fil: Rosa, D. A.. Universidade Do Vale Do Paraiba; Brasil
dc.description.fil Fil: Dors Jr., Oli L.. Universidade Do Vale Do Paraiba; Brasil
dc.description.fil Fil: Pastoriza, Miriani G.. Universidade Federal Do Rio Grande Do Sul; Brasil
dc.description.fil Fil: Winge, C.. Gemini Observatory; Chile
dc.description.fil Fil: Hägele, Guillermo Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
dc.description.fil Fil: Cardaci, Monica Viviana. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina; Argentina
dc.description.fil Fil: Rodrigues, Irapuan. Universidade Do Vale Do Paraiba; Brasil
dc.journal.title Monthly Notices Of The Royal Astronomical Society
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/stt1913
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stt1913


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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)